Kwi-2016 CFexpress yabhengezwa, ifomati yekhadi lememori entsha ukuba ingabhidaniswa neCF endala (iCompact Flash). Yahlukile kwaye yenzelwe ukunika ukusebenza okuphezulu kunye nezinye iingenelo kwiindawo ezifuna kakhulu. Ngoku kukho intetho engakumbi malunga naye ngenxa yokukhutshwa kwamva nje kweCanon kunye neSony. ngoko oku yonke into ofuna ukuyazi malunga neCFexpress, ukusuka kwiimpawu zayo ukuya kumaxabiso ayo angoku.
CFExpress, ukugcinwa kokusebenza okuphezulu
Nangona kubonakala ngathi esinye isizathu sokuba abavelisi baqhubeke bekhupha imali kubasebenzisi, ukuqaliswa komgangatho omtsha wekhadi lememori kuphendula imfuno ecacileyo yokuphucula amandla okusebenza kwiindawo ezifuna kakhulu.
Le yinto ebonwa ngokucacileyo ngakumbi, kunye nezindululo ezitsha ezinje ngeCanon okanye iSony zisandula ukuboniswa. Nangona ukuzalwa kunye nokusetyenziswa yinto ebesiyibona njengento yokwenyani iminyaka ethile ngoku.
Kwi-2016 ifomathi yabhengezwa, nangona bekungekho de kube ngunyaka kamva ukuba baqala ukubetha imarike kunye neekhamera ezifana Canon EOS C500 Mark II, Nikon Z6 kunye Z7.
Eyona nto iphambili kula makhadi ememori matsha sisantya esiphezulu xa besenza ukudluliselwa kwedatha. Ukuya kwi-4 GB / s inokufezekiswa ngenye yezi nkxaso ngokusebenzisa imigca emi-4 edityanisiweyo usebenzisa i-PCI 3.0 interface. kwaye kukho iintlobo ezintathu zamakhadi eCFexpress: Uhlobo A, Uhlobo B kunye noHlobo C. Nganye kwezi inobukhulu obahlukileyo, ngoko ke kumenzi ngamnye ukuba akhethe enye okanye enye ngokusekwe kwiikhrayitheriya zabo.
| CFexpress Uhlobo A | CFexpress Uhlobo B | CFexpress Uhlobo C | |
|---|---|---|---|
| Ubukhulu | X x 20 28 2,8 mm | X x 38,5 29,6 3,8 mm | X x 54 74 4,8 mm |
| ujongano loqhagamshelwano | I-PCIe Gen3 (indlela enye) | I-PCIe Gen3 (indlela enye) | I-PCIe Gen3 (indlela enye) |
| Inkqubo | NVMe 1.3 | NVMe 1.3 | NVMe 1.3 |
| isantya sethiyori | 1GB/s (8Gbps) | 2GB/s (16Gbps) | 4GB/s (32Gbps) |
Nangona kunjalo, eyona nto ibalulekileyo kukuba la makhadi akufanele abhidaniswe neCFast. Lawa ngamakhadi ahloselwe ukusetyenziswa kokusebenza okuphezulu kwaye, umzekelo, iikhamera ezifana neBlackmagic Pocket Cinema Camera 4K okanye 6K.
Ngokubhekiselele kwizantya, la makhadi ememori ayilelwe ukuba asetyenziswe kwiindawo ezifunwayo, zombini kwinqanaba lefoto kunye nevidiyo. Ndiyabulela kwisantya esiphezulu sokufunda nokubhala, ukuhamba komsebenzi kuphuculwe ngandlela zonke.
Ekuqaleni unethuba lokuthatha imifanekiso kunye neevidiyo ngolwazi oluninzi ngakumbi enkosi kumthamo ophakamileyo wokubhala. Oku kubaluleke kakhulu ukusebenza ngezinto ezi-RAW. Kwaye oko, umzekelo, Umzuzu we-1 wevidiyo ye-8K kwiCanon EOS R5 ithatha malunga ne-18 GB, ngoko khawucinge ngokukhawuleza ukuba inkxaso kufuneka ibhale idatha ukuze ungenzi i-bottleneck.
Kule theyibhile ungabona uthelekiso lwemigangatho yekhadi eyahlukeneyo ekhoyo namhlanje, iinguqulelo zabo kunye nesantya esiphezulu abanokufikelela kuzo.
| Estándar | Inguqulelo | Qalisa | Umgaqo-nkqubo (BUS) | Isantya (i-duplex epheleleyo) |
|---|---|---|---|---|
| SD | 3.0 | 2010 | UHS-I | 104 MB / s |
| SD | 4.0 | 2011 | I-UHS-II | 312 MB / s |
| SD | 6.0 | 2017 | UHS-III | 624 MB / s |
| SD | 7.0 | 2018 | PCI-e 3.0 X1 | 985 MB / s |
| SD | 8.0 | 2020 | PCI-e4-0 x4 | 3900 MB / s |
| Ikhadi le-UFS | 1.0 | 2016 | UFS 2.0 | 600 MB / s |
| Ikhadi le-UFS | 2.0 | 2018 | UFS 3.0 | 1,2 GB / s |
| CFast | 1.0 | 2008 | SATA 300 | 300 MB / s |
| CFast | 2.0 | 2012 | SATA 600 | 600 MB / s |
| XQD | 1.0 | 2011 | PCI-e 2.0 x1 | 500 MB / s |
| XQD | 2.0 | 2014 | PCI-e 2.0 x2 | 1 GB / s |
| ICFexpress | 1.0 | 2017 | PCI-e 3.0 x2 | 2 GB / s |
| ICFexpress | 2.0 | 2019 | PCI-e 3.0 x4 | Ukuya kuthi ga kwi-4 GB / s |
CFexpress, amandla kunye namaxabiso
Ngoku siyayazi ifomathi kwaye sicacile malunga nezibonelelo zayo, makhe sithethe ngamaxabiso kunye nobuchule. Njengoko kwenzeka naso nasiphi na isindululo, ukususela ekuqaleni ziyizisombululo ezineendleko eziphezulu kakhulu kunezinye ezisele zisekwe kwimarike.
Umzekelo, i-CFexpress Type B ye-128 GB okwangoku ixabisa malunga ne-280 euros. Kwelakhe icala, i Uhlobo lweCFexpress A 80 GB kunye ne-160 GB zixabisa malunga 250 kunye nama-500 euros ngokulandelelanayo. Ke ngoko, kufuneka ucinge ngononophelo ukuba uya kufumana okuninzi kwezi nkxaso.
Namhlanje, abasebenzisi abaninzi basenako ukusebenzisa amakhadi e-SD aphezulu xa bethatha iifoto okanye berekhoda ividiyo ngeekhamera ezikumgangatho ophezulu. Kwaye kwimeko yokufuna ukurekhoda ividiyo ngefomathi ye-RAW, uhlobo lweerekhoda ze-Atomos zinokucetyiswa ngakumbi.